public ChangePasswordWindow()
{
InitializeComponent();
// Наблюдаем за изменением пароля во всех трёх формах сразу. При помощи Select выбираем только тот элемент который нас интересует.
// Наблюдается ошибка многопоточности при использовании Throttle. Подробнее по ссылке.
// https://stackoverflow.com/questions/8766812/cross-thread-exception-when-using-rx-throttle
Observable.FromEventPattern <RoutedEventHandler, RoutedEventArgs>(h =>
{
CurrentPasswordBox.PasswordChanged += h;
NewPasswordBox.PasswordChanged += h;
NewRepeatPasswordBox.PasswordChanged += h;
},
h =>
{
CurrentPasswordBox.PasswordChanged -= h;
NewPasswordBox.PasswordChanged -= h;
NewRepeatPasswordBox.PasswordChanged -= h;
})
.Select(o => o)
.Throttle(TimeSpan.FromMilliseconds(100))
.ObserveOn(DispatcherScheduler.Current)
.Subscribe(o =>
{
PasswordBox box = o.Sender as PasswordBox;
if (box.Equals(CurrentPasswordBox))
{
ViewModel.CurrentPassword = box.Password;
}
else if (box.Equals(NewPasswordBox))
{
ViewModel.NewPassword = box.Password;
}
else if (box.Equals(NewRepeatPasswordBox))
{
ViewModel.NewRepeatPassword = box.Password;
}
});
this.WhenActivated(disposable =>
{
this.BindCommand(ViewModel, x => x.ValidateCommand, x => x.ValidateButton);
});
}
/// <summary>
/// Copies text between PasswordBox and PasswordBox2, then calls
/// TextChanged_VerifyFields().
/// </summary>
/// <param name="sender">Either PasswordBox or PasswordBox2</param>
/// <param name="e">action event args</param>
private void PasswordChanged_VerifyFields(object sender, RoutedEventArgs e)
{
if (PasswordBox.Equals(sender))
{
PasswordBox2.Text = PasswordBox.Password;
}
else
{
PasswordBox.Password = PasswordBox2.Text;
}
TextChanged_VerifyFields(PasswordBox, null);
}
public void IfFocusPasswordHintUnable(object sender, RoutedEventArgs e)
{
PasswordBox passwordBox = (PasswordBox)(sender);
if (passwordBox.Equals(txt_PW))
{
label_PW.Visibility = Visibility.Hidden;
passwordBox.Focus();
}
else
{
label_PW_check.Visibility = Visibility.Hidden;
passwordBox.Focus();
}
}
public void PasswordHintEnable(object sender, RoutedEventArgs e)
{
PasswordBox passwordBox = (PasswordBox)(sender);
if (passwordBox.Password.Length == 0)
{
if (passwordBox.Equals(txt_PW))
{
label_PW.Visibility = Visibility.Visible;
}
else
{
label_PW_check.Visibility = Visibility.Visible;
}
}
}